Every Year; Troubleshooting - Zibro A2W300 Manuel D'utilisation Et D'installation

3. EVERy yEAR

The heat pump boiler should be inspected and serviced every year by an
authorized dealer every year.
The authorized dealer will:
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h

TROUBLEShOOTING

This section provides useful information for diagnosing and correcting certain
troubles in the unlikely case they should occur. Before contacting a local dealer,
read this chapter carefully.
The guidelines below might help to solve the problem.
problem
The heat pump
boiler does not
start.
The heat pump
boiler is run-
ning but does
not heat the
water.
The safety
valve is con-
stantly leaking
4
water.
52
Check the power supply and the electrical system and wiring, replace
damaged and worn out parts in time. Check if there is a damaged part.
Replace damaged parts in time.
Clean the heat pump boiler tank and electric heater, to keep an efficient
performance.
Check each part of the heat pump boiler and the pressure of the refrigerant
system. Replace defect parts, and recharge refrigerant if it is required.
Cause
Power cut.
Unit may have become
unplugged.
Wrong timer program.
Wrong temperature set point
Unit is in disinfection mode.
An error code appears on the
control panel
Dirty evaporator.
Air ducts are blocked.
Defect safety valve.
Boiler pressure is too high.
Solution
Wait for power to be restored
Check if main power is still
connected.
Check power cord.
Reprogram timer.
Reprogram set point.
Wait until disinfection mode
is over.
Reset the heat pump boiler.
See chapter E.7. Contact a
local dealer if the error code
returns back.
Clean evaporator.
Clean air ducts.
Replace safety valve.
Contact a local dealer or a
heat pump boiler engineer.