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Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK · Tel: +44 (0)1621 857 171
Installation Manual
AW629/829AL
R
8.0 Heat Pump
Malfunction
WARNING: Isolate heat pump electrically before entering
heat pump or removing panels.
The user check list should be carried out before initiating a service call.
Do not attempt to interfere with any internal control settings as these have
been factory calibrated and sealed.
Any sign of abnormal operation such as water dripping should be reported
immediately to an installer or Calorex. If in doubt or if advice is required
contact Calorex Service Department.
Tel44(0)1621 857171 or 856611
8.1User Check List
ACTION
MAINS
RED
OFF
FAULT
AMBER
OFF
Check mains supply- external fuses - isolator etc.
DEFROST
WHITE
OFF
WATER FLOW
GREEN
OFF
MAINS
RED
ON
FAULT
AMBER
OFF
Water flow inadequate or faulty flow switch.
DEFROST
WHITE
OFF
WATER FLOW
GREEN
OFF
MAINS
RED
ON
First check water flow, then
FAULT
AMBER
OFF
Check unit control fuse.
DEFROST
WHITE
OFF
WATER FLOW
GREEN
OFF
MAINS
RED
ON
Check water and air flows are not restricted.
FAULT
AMBER
ON
Check that air flow is not restricted. Check unit
control fuse.
DEFROST
WHITE
OFF
WATER FLOW
GREEN
OFF
CONTINUED OVERLEAF
UNIT DOES NOT OPERATE
LAMP