HEAT PUMP MALFUNCTION
WARNING: Isolate machine electrically before entering
machine or removing panels.
The user check list should be carried out before initiating a service call.
Do not attempt to interfere wi any internal control settings as ese have
been factory calibrated and sealed.
Any sign of abnormal operation such as water dripping should be reported
immediately to an installer or Danerm Ltd.
If in doubt or if advice required contact e Danerm Group UK Service
Department.
Telephone (01621) 856 611 (option 4).
LAMP ACTION
UNIT DOES NOT OPERATE
MAINS RED OFF Check mains supply - external
FAU LT AMBER OFF fuses - isolator
DEFROST WHITE/AMBER OFF
MAINS RED ON Check unit ON/OFF. switch on mains lamp.
FAU LT AMBER OFF Lamps on mains supply on only (WA1222C only).
DEFROST WHITE/ AMBER OFF Check ermostat setting. Check internal control fuse if aer 15
minutes fan does not run.
MAINS RED ON Check water and air flows are not restricted.
FAU LT AMBER ON Check ermal cut out on So Start if fitted.
DEFROST WHITE/ AMBER OFF Check HP (and LP on WA1222C,AW634AHC), cut out
switches and reset (red button above console ermostat).
Check water pump etc. to restore water flow rough machine.
FAN ON COMPRESSOR OFF
MAINS RED ON Unit on defrost (heating mode) check air temperature is not
below 7°C.
FAU LT AMBER OFF
DEFROST WHITE/ AMBER ON Unit off on chill limit (cooling mode WA1222C, AW634AHC
only) Check water pump etc. to restore water flow rough
machine.
UNIT OPERATES INTERMITTENTLY
MAINS RED ON Check water and air flows are not restricted
FAU LT AMBER ON/
OFF
and at electrical supply is adequate.
DEFROST WHITE/ AMBER OFF
USER CHECK LIST FOR WA634ACH, WA634ACL, AW634AHC, WA1222AC AND WA1234BC
36
SD331852 ISSUE 7
OWNER INSTALLATION MANUAL 634ACH/ACL/AHC /1222AC/1234BC/BHC /1834BHC /PP22BC
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