MIKOTERM TK-24 12kW, Instructions For Installation, Use And Maintenance Manual

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Troubles and Troubleshooting
10. Troubles and Troubleshooting
Removing troubles on regulation and
hydraulics must be executed by authorised
company.
For repairs are used only original spare parts.
Trouble: Description: Cause: Measure:
Boiler does not react
after main switcher
on.
Contactors not put
on - boiler is out of power supply
- fuses in electric cabinet are
off
- possible loss of control phase
-
main fuse defect
ON/ OFF
- secure power supply voltage
- turn on fuses
- check fuses output if there are
three phases
- replace defect part
Boiler does not heat or
heat insufficiently /
heating pump works
Boiler does not
supply hot water - failure of 1 or 2 phases
- to low boiler power
- defect of some relay
- defect of some heater
- check if three phases work in boiler
- check adjusted power of boiler
- replace defect part
- replace defect part
Boiler heats but is
very noisy Increased noise level
during work - air in the system
- too low water flow
- possible calcification on
heater
- check if system is
ventilated and if not
perform air vent
- check boiler valves and open it
- clean filter in front of boiler
- take out heaters and clean
them (this is not warranty
included)
Boiler turns off quickly
Achieves set
temperature too fast
and turn off the work - closed valves below the boiler
- locked pump
- defective heating pump
- open valves
- turn on pump rotor
- replace defect part
Working pressure
great oscillations Too fast and too big
changes of working
pressure - one valve closed
-
inadequate pressure in expansion
dish
- defective expansion dish
- open valve
- check pressure in expansion dish
and if needed pump up the dish up to
adequate value
- replace defective part
Table 8:
Troubles and Troubleshooting