35
Outlet gas
temp too high
error
Er12
Er13
1. Lack of
refrigerant
2. Water pump is
too small
3. Water pipe is too
small
4. Air entered water
system
1. Repair leakage and
refill refrigerant
2. Change a bigger
water pump
3. Change bigger size
water pipe
4. Release air in
water system
Outlet water
temp too low
protection
when cooling
Er23
1. Circulating water
pump is too small
2. Air entered water
system
3. There is impurity
in water filter.
1. Change a bigger
water pump
2. Release air from
water system
3. Clean the filter
Outlet water
temp too high
protection
when heating
(hot water)
Er45
1. Circulating water
pump is too small
2. Air entered water
system
3. There is impurity
in water filter.
1. Change a bigger
water pump
2. Release air from
water system
3. Clean the filter
Compressor
current is too
large
Er35
Er36
1. The current
detector is damaged
2. Compressor
damaged
3. Compressor
doesn’t start
1. Change the
detector
2. Change
compressor
3. Check if the
compressor cable is
loose