Danfoss Heat Pump Troubleshooting Guide download pdf (Page 33)

VMIFB202

Water does not get hot

Action:

Check fuse(s).

Check if there is cold water supply, if not, check why and rectify the fault.

Check if the overheat protection has tripped, reset by pressing the button until it clicks.

Extremely long heating time

Action:

Check fuses so that all are intact at heaters with two phases or three phases. If not change fuse(s).

Clean coils or replace electric heating element / shield

The heater is hot but no hot water comes out of it

Action:

Check if the mixing valve is defective, remedy or replace.

Check if there is cold water supply, if not, check why and rectify the fault.

The safety valve leaks

Action:

It is completely normal, but if it leaks the whole time at a cold heater, replace the safety valve.

Water runs from the heater

Action:

Check where the water comes from

Replace the gasket or O-ring at leakage from couplings

Replace the electric heating element in event of leakage in the electric heating element

Replace the water heater if there is a hole in the water heater

Troubleshooting Guide Electric hot water heaters

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Danfoss Heat Pump Troubleshooting Guide Page 33