Read Front Cover_2006/2007 text version

PANASONIC TROUBLE SHOOTING GUIDE

A General Guide To Room Style Products

Pipework

· · · · · · · Pipe sizes and lengths should be as the relevant Technical Guide Both lines should be insulated No line accessories or oil traps should be fitted In cooling mode both pipes should be between 0 and 10C - the suction line should sweat, but not freeze In heating mode both pipes should be between 30 and 60C Pipework should be refrigeration quality Look for restrictions. They could cause compressor failures.

Outdoor Unit

· · · · · Discharge Temperature should be between 50 and 70C Suction Temperature should be between -3 and 4C Check Suction Line is sweating in cooling - problem if not! Hot Recip. Compressor = PROBLEM Sweating/Frost on expansion line - undercharged

Indoor Unit

· · · · · · Is it level? Have we adequate drainage? Smells are always due to site conditions or drains. Flashing lights? = Fault Diagnostics - see over When were the filters last cleaned? Is the unit too large/small (between 5/20 air circs/hr) Is the air short cycling?

Controller

· · · · · · Is it a wired or wireless handsets. Is the handset too far away? When were the batteries changed last? With wired handset, check for interference. Is the unit in Emergency Mode? Check unit and controller channels compatible

Wiring

· · · · · · Interconnecting comms wiring is low voltage If you have 230V live, check you have a neutral as well Check Mains and comms cable not swapped round Multi linked systems must be set up as such Check voltage drops! Check it isn't down to Earth! Interconnecting cables should be circular crimped

Selecting Test Run

Every unit has an Emergency (marked Auto (Off/On) button Pressing this for less than five seconds initiates Emergency Operation Pressing this for seven seconds initiates Test Cooling Pressing this for ten seconds initiates Test Heating

Wire

Cool Only Heat Pump Inverter

E

Earth Earth Earth

1

Live Live Live

2

Neutral Neutral Neutral

3

N/A Heating Comms

4

N/A Defrost N/A

Sensor Resistances - Use to check Thermistor

Sensor readings are the same for both indoor and outdoor units. If the fault code suggests the sensor is a problem but you get a sensor reaading as to the righ then either the Connection or PCB is at fault

Sensor Indoor Air All Indoor Pipe All Outdoor Air Singles Outdoor Pipe Singles Compressor Singles All Outdoor Multis

At 10C 30K 0hms 40K 0hms 30K 0hms 10K 0hms 100K 0hms 40K 0hms

At 20C 18K 0hms 25K 0hms 18K 0hms 6K 0hms 60K 0hms 25K 0hms

At 30C 12K 0hms 16K 0hms 12K 0hms 3K 0hms 40K 0hms 16K 0hms

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PANASONIC TROUBLE SHOOTING GUIDE

Fault Diagnostics

Fault Codes are only used on Inverter Systems. Both Single and Super Multi Inverter Systems use the same fault codes as below. Outdoor Codes are ONLY used by the Super Inverter Multi systems models 23 and 27, NOT single systems. When a Fault Occurs the Timer Lamp wil start flashing and the unit stops Turning the Power Off will reset the unit but will not clear the fault code The unit will remember up to three fault codes. To fund the fault code Ensure power is on at the unit and point the remote controller at it so a signal can be received For single systems (CSE and CSXE) press the CHECK button for more than 5 seconds For Multi systems (CSME) press the Timer Setting Up Arrow for more than five seconds H11 will appear on the Remote Control Display - this indicates that Interrogate Mode is Operational Use the Timer Setting Up and Down Arrows to scroll between fault codes until four beeps are heard - this shows the Fault Code Fault Codes are cleared from memory by setting Test Cooling and shorting the RESET terminals in the controller battery compartment.

Code Reference H11 H12 H14 H15 H16 H19 H21 H23 H27 H28 H30 H32 H33 H34 H36 H37 H39 H41 H97 H98 H99 F11 F17 F90 F91 F93 F95 F96 F97 F98 F99 None

Outdoor LEDS - CU3E23 & CU4E27 Only LED 1 LED 2 LED 3 LED4 Off Off Off Off On Off Off Off Off Off Off Off Off Off Off Off Off Off Off On On On On On Off Off Off Off On Off Off On Off Off Off Off On Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off On Off Off On On Off On Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off Off On On Off On Off On On Off Off On Off On Off Off Off Off Off Off Off Off Off Off Off Off Off Off On Off Off Off Off Off On On Off On On On Off Off Off On On Off On

Meaning

Likely Cause

Comms Failure ID/OD Compatibility Problem Indoor Air Sensor Faulty Compressor Sensor Faulty Current Transformer Problem Indoor Fan Motor Locked Float Switch Operated Indoor Pipe Sensor Faulty Outdoor Air Sensor Faulty Outdoor Pipe Sensor Faulty Outdoor Discharge Sensor 1 Faulty Outdoor Discharge Sensor 2 Faulty Incorrect Connection Voltage Outdoor Heat Sink Sensor Faulty Outdoor Gas Sensor Faulty Outdoor Liquid Sensor Faulty Abnormal Indoor Operation Abnormal Wiring or Piping Outdoor Fan Failure Indoor Coil Overheat (Heat Mode) Indoor Coil De-Ice (Cool Mode) Reversing Valve Failure Standby Units Freezing PFC Failure Refrigeration Cycle Problem Compressor Abnormal Revolution Outdoor Coil Overheat (Cool Mode) IPM or Compressor Overheating High Discharge/Compressor Temp Overcurrent Protection DC Overcurrent Protection Control Box Overheating

Faulty Wiring or other problem with ID to OD communication Over or Underindexed multi system Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Power Transistor Module or Outdoor PCB Faulty. Very Low Gas Fan Motor of Indoor PCB Failure Check Drainage Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Indoor or Outdoor Voltage Incorrect/Faulty Wiring Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Sensor Disconnected, Faulty or Contacts Dirty Incorrect Piping or Expansion Valve Problem Wiring or Piping Crossed ona Twin System Outdoor Fan Motor or PCB Failure Dirty Filters or Indoor Coil. Very High Room Temperature Dirty Filters or Indoor Coil. Low Gas Charge or Low Ambient Temp Faulty Reversing Valve, Coil or Outdoor PCB Multi Only. Expansion Valve Leakage Problem with Inverter or Compressor Low Gas or Blockage Compressor Running Incorrectly Dirty Condensor Coil, low gas or blockage Excess or Low Gas Charge or dirty heat exchanger Low Gas Charge or Failed Compressor Outdoor Heat Exchanger Problem. Excess Gas Outdoor PC, Power Transistor or Compressor Failure Maintenance Required on OD Unit

For models CU3E23 & CU4E27 only there is a Green LED which normally flashes If this is LIT then turn the power Off then On again. If it still does not flash the Outdoor PCB is Faulty. If this is Off then there is a problem with the power supply.

All prices shown are retail and are exclusive of VAT at 17.5%

Air Conditioning Guide

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PANASONIC TROUBLE SHOOTING GUIDE

Panasonic Free Style Products

General comments for Pipework, Indoor & Outdoor Units

· In general the Free Style product follows the notes for US Systems · These are shown on page 140. · Model specific comments and Fault Codes are shown here.

Selecting Test Run

At Handset press RUN then TEST BUTTONS At OD UNIT press TEST HEAT or TEST COOL button Unit will run for 30 minutes in test mode For R410a models gas pipe temp will be displayed. Series R22/R407C R410a E Earth Earth 1 Live Live

Wiring Schedule

2 Neutral Neutral 3 Comms Comms 4 Comms Comms

Sensor Resistances

Use these to check sensors All values in KOhms Sensor Air Sensor Pipe Sensor Air Sensor ID Pipe OD Disch OD Pipe (X3) At 0C 67K 67K 51K 67K 168K 16K At 10C 40K 40K 30K 40K 101K 10K At 20C 25K 25K 19K 25K 63K 6K At 30C 16K 16K 12K 16K 40K 4K

R22/407C R22/407C R410a R410a R410a R410a

Fault Diagnostics ­ Older Style FS Units R22

First generation series 11NP Series with E style fault codes Press check on the Wired Controller to call up the Fault Codes. Fault Code At Remote E1 E2 E3 E4 Indoor Unit PCB LED2 Flash Lit Lt Meaning Of Fault Code Signal from RC to ID Unit faulty Float Switch Air Sensor Faulty Pipe sensor Faulty

LED1 Flash Lit

LED3 Flash

Second Generation 21NP Series with F Fault Codes Press Check on the Wired Controller to call up the Fault Codes Fault Code At Remote F2 F3 F4 F5 F5 F6 F6 F13 F15 F18 Indoor Unit PCB LED3 LED4 Lit Lit Lit Lit Lit Outdoor Unit PCB LED3 LED4 Meaning Of Fault Code Float switch Indoor Air Sensor Faulty Indoor Air Sensor Faulty Signal from RC to ID faulty No Signal from ID to RC Signal from ID to OD faulty No Signal from Od to ID OD Unit Overcurrent Protection HP Switch Outdoor Pipe Sensor Faulty

LED1 Lit

LED2 Lit Lit Lit Lit Lit

Lit Lit

Lit Lit Lit

Lit Lit Lit

LED1 Lit Lit Lit Lit Lit Lit Lit Lit Lit

LED2

Lit Lit Lit

Lit

Third Generation 32JP Models and Later Press Check on the Wired Handset and use the Fault Codes on the next page. Please Note: The LED codes shown are not applicable to R22/R407c units but the F codes are

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PANASONIC TROUBLE SHOOTING GUIDE

Fault Codes ­ FS Series

Current Models R410a

Pressing Check on the wired remote while CHECK is flashing will give the Fault and the address of the unit with the Fault Pressing Timer Set with the fault displayed will display a second code giving further information (detail code) Pressing Check for 5 seconds will check past faults On wireless handsets press the temp up for 5 seconds to enter error check mod Scroll through the codes using the temp up button until a beep is heard from the indoor unit Press set and repeat until the full code is displayed

F Code Display F15 F16 F17 F17 F20 F20 F21 F25 F26 F27 F27 F27 F27 F27 F27 F29 F30 F30 F31 F31 F31 F31 F31 F31 F32 F32 F32 F32 F32 F32 F32 F33 F33 F35 F40 F40 F40 F40 F40 F40 F40 F41 F41 F41 F42 F42 F44 F49 F49

Detail Display O1 O1 O1 O2 O1 O2 O1 O1 O1 O1 O2 O5 O1 O2 O5 O1 O1 O2 O1 O2 O6 O8 O9 10 O3 O4 O5 O6 O8 O9 10 O1 O2 2 O1 11 21 31 51 41 61 O2 O3 11 O1 11 O1 O1 O2

302

303 Flash

304 Flash

Outdoor LED 305 Flash

306 Flash

307 Flash

Flash Flash

Flash Flash Flash Flash Models with LEDS 1-6 Flash Flash Models with LEDS 1-6 Flash Flash Models with LEDS 1-6

Flash Only for Older Flash Only for Older Flash Flash Flash Only for Older

Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash

308 See See See See See See See See See See See See

309 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1 Note 1

Only for Older Models with LEDS 1-6 Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash

Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Only for Older Models with LEDS 1-6 Only for Older Models with LEDS 1-6 Flash Flash Flash Flash Flash Flash Flash Flash Flash Flash Only for Older Models with LEDS 1-6 Only for Older Models with LEDS 1-6 Flash Flash Only for Older Models with LEDS 1-6 Flash Only for Older Models with LEDS 1-6 Flash Flash Flash Flash Only for Older Models with LEDS 1-6 Only for Older Models with LEDS 1-6

Flash

Flash

Flash Flash

Meaning Of Code Drain Failure Louvre Failure Option Problem DC Fan Motor Failure ID Air Sensor RC Air Sensor ID Pipe Sensor Addressing Incorrect RC Comms Problem ID - OD Comms Disconnected ID ID - OD Comms Connection ID ID - OD Comms Connection ID ID - OD Comms Disconnected OD ID - OD Comms Connection OD ID - OD Comms Connection OD ID PCB Setting ID/OD Capacity Incorrect Phase Rotation Low Pressure High Pressure Reversing Valve Indoor Coil Iced Gas Leak Low Gas, Valve Shut or Blockage Inverter Low dc Volts Inverter IPM Compressor Overcurrent Compressor Disch Temp High Inverter PFC Inverter High dc Volts Compressor Rotation Problem Compressor High Current High Discharge Temp OD dc Fan Motor Locked OD Outlet Sensor Suction Temp OD Liquid Sensor Defrost Sensor Discharge Sensor Discharge Sensor OD Pipe Sensor HP Switch Heating HP Switch Low Pressure Sensor Compressor Current Sensor Current Sensor Open Inverter IPM Sensor OD PCB Setting Faulty OD PCB Setting Faulty

Note 1: LED308 is lit if the master unit is the problem or 309 for the slave LED 301 is lit when power is supplied to the PCB

All prices shown are retail and are exclusive of VAT at 17.5%

Air Conditioning Guide

139

PANASONIC TROUBLE SHOOTING GUIDE

A General Guide To Urban Style Products

Pipework

· · · · · · · Pipe sizes and lengths should be as the relevant Technical Guide Both lines should be insulated No line accessories or oil traps should be fitted In cooling mode the suction line should sweat, but not freeze In heating mode both pipes should be between 30 and 60C Pipework should be refrigeration quality Look for restrictions. They could cause compressor failures.

Outdoor Unit

· · · · · Discharge Temperature should be between 50 and 70C Suction Temperature should be between -3 and 4C Check Suction Line is sweating in cooling - problem if not! Hot Recip. Compressor = PROBLEM Sweating/Frost on expansion line - undercharged

Indoor Unit

· · · · · · Is it level? Have we adequate drainage? Smells are always due to site conditions or drains. Flashing lights? = Fault Diagnostics - see over When were the filters last cleaned? Is the unit too large/small (between 5/20 air circs/hr) Is the air short cycling?

Controller

· · · · · · Is it a wired or wireless handset. Is the handset too far away? When were the batteries changed last? With wired handset, check for interference. Is the unit in Emergency Mode? Check unit and controller channels compatible

Wiring

· · · · · · Interconnecting comms wiring is low voltage If you have 230V live, check you have a neutral as well Check Mains and comms cable not swapped round Multi linked systems must be set up as such Check voltage drops! Check it isn't down to Earth! Interconnecting cables should be circular crimped

Selecting Test Run

Selecting Emergency Mode is done at the Indoor and Outdoor Unit PCB. It bypasses the Control Sensors and should not be done for more than 30 minutes. Indoor PCB - Switch SS1 to Emergency Setting Outdoor PCB - Switch Emergency Switch 1 to ON Outdoor PCB - Switch Emergency Switch 2 to Cool or Wire All E Earth 1 Live 2 Neutral 3 Comms

Sensor Resistances ­ Use to check Thermistor

Air and Pipe sensors apply to indoor AND outdoor units. The discharge sensor is only in the outdoor unit. If the fault code suggests the sensor is a problem but you get a sensor reading as to the right then either the connection or PCB is at fault. Sensor Air Sensor Pipe Sensor Discharge Sensor At 10C 40K 0hms 40K 0hms 480K 0hms At 20C 25K 0hms 25K 0hms 293K 0hms At 30C 16K 0hms 16K 0hms 184K 0hms

TECHNICAL SUPPORT: 08705 218218

140

Air Conditioning Guide

All prices shown are retail and are exclusive of VAT at 17.5%

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