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Operation and Maintenance Instructions
THE NEW EcoHeater
DSEH180401.00.EN
Continuous product development may give rise to specification changes without notice.
6.2 Troubleshooting via symptoms and status message
IV Produkt
%
000
Demand:
000%
Status: OFFbyDIN
Inv
OFF
Carel
Climatix hand-held unit
Symptom Status
message
heat pump
Possible cause
Corrective action
Compres-
sor does not
start
OFFbyKey
Menu in Carel ” On/Off Unit” is not set to
ON
Set to ON.
OFFbyDIN
Interlock from Climatix missing.
Move CHANGEOVER SWITCH
SERVICE to “Auto”.
UnitOn
1. The demand indicator is lower than
10% (menu in Climatix “Heat demand”).
1. Check external control 0-10V,
heat curve and temperature
sensor outdoor air.
2. The start delay for the compressor has
not counted down to 0.
2. Wait or jump start.
FrostTemp
1. The difference between the return air
temperature and extract air temperature
is greater than 3°C (menu “End defrost-
diff”).
1a. Wait until the exhaust air
temperature has risen to the
starting level.
1b. Jump start.
2. The exhaust air temperature is lower
than 12°C (menu “End temp min freq:”).
2. Wait for the exhaust air
temperature to rise.
3. The compressor has stopped due to
the evaporating temperature or exhaust
air temperature having fallen below its
respective minimum temperature at the
compressor’s lowest possible speed.
3. Check that the air flow is not
too low.
Low water flow Insufficient water flow through the com-
pressor.
1. Check that the circulation pump
heat pump CP1 is running.
2. Check that the water flow is in
the correct direction.
The com-
pressor
speed drops
HiPress
1. Insufficient water flow through the heat
pump.
1. Adjust the water flow.
2. High return water temperature to the
heat pump.
2. Check the incoming water
temperature.
FrostTemp
The compressor speed is limited to pre-
vent frost formation on the evaporator.
Normal condition when the ex-
tract airflow is not high enough to
run the compressor at maximum
power.
