The inlet air is too hot - restore the nominal conditions.
The inlet air flow rate is higher than the rate of the dryer - reduce the flow rate -
restore the normal conditions.
The ambient temperature is too high or the room ventilation is insufficient -
provide proper ventilation.
The set-point of the DMC5 is too high - see paragraph SET-UP of the DMC5.
The condenser is dirty - clean it.
The dryer doesn’t drain the condensate - see specific point.
There is a leak in the refrigeration circuit - contact a certified refrigeration
technician
DewPoint too low.
Verify wiring of the DMC5.
Verify wiring of the DMC5 probe
Verify wiring of the hot gas by pass solenoid valve.
The electric coil of the hot gas by-pass solenoid valve may have burned out –
test resistance/ replace it.
The probe of the DMC5 does not properly detect the temperature of the
evaporator – push the probe until it reaches the bottom of the measurement
well.
The set-point of the DMC5 is very low - see paragraph SET-UP of the DMC5.
DMC5 Air Dryer Controller doesn’t work - replace it.
The hot gas solenoid valve is blocked - contact a certified refrigeration
technician.
Excessive pressure drop within the
dryer.
The DewPoint is too low - the condensate is frozen and blocks air flow - see
specific point.
Check for throttling the flexible connection hoses.
The condensate is not draining
Verify the electric wiring.
The condensate drain mechanical filter is clogged - remove and clean it.
The drain solenoid valve is jammed - remove and clean it.
The electrical coil on the condensate drain solenoid valve may be burned out- test
resistance/replace it.
DMC5 doesn’t work - replace it.
The DewPoint is too low - the condensate is frozen - see specific point.
The dryer continuously drains
condensate.
The drain solenoid valve is jammed - remove and clean it.
Verify the electric wiring.
DMC5 doesn’t work - replace it.
Water within the line.
The dryer is off - switch it on.
Untreated air flows through the by-pass unit (if installed) - close the by-pass.
The dryer doesn’t drain condensate - see specific point.
DewPoint too high - see specific point.
