46
13 - TROUBLE SHOOTING
Remove Jacket.
Is User Interface lit?
NO
YES
Check for 120 vac in boiler high
voltage terminal box.
Is 120 vac present?
Check power supply to
boiler. Check breakers,
disconnect and
emergency switch for
voltage. Fix or repair
external wiring.
Locate fuse holder on front of
control and pull to check fuse.
Spare fuse located on controller.
Make sure all wire harness plugs
are properly pushed in. Release
plug lock with finger, remove
and reconnect all 7 plugs. Check
wiring from User Interface to Low
Voltage Terminal Strip including
checking continuity of wires. Does
User Interface Display work?
Remove User Interface from
base. Using Digital Voltmeter
check for 25 to 30 Vdc. Is voltage
present?
Does display show "Standby - No
Demand?
There is no call for
heat or hot water.
Check thermostat.
Outdoor air sensor
may be faulty - boiler
in warm weather
shutdown.
GO TO NEXT PAGE
NO
YES
NO
YES
NO
YES
NO
YES
Replace Control Module
Replace User Interface
If boiler does not function.
P/N# 2400010616, Rev. E [07/2015]
Summary of Contents for Olsen OLSSV-050
Page 50: ...50 13 TROUBLE SHOOTING P N 2400010616 Rev E 07 2015...
Page 52: ...52 13 TROUBLE SHOOTING P N 2400010616 Rev E 07 2015...
Page 64: ...64 14 1 Connection Diagram 050 075 100 MBH 14 WIRING DIAGRAM P N 2400010616 Rev E 07 2015...
Page 66: ...66 14 3 Connection Diagram 150 200 MBH 14 WIRING DIAGRAM P N 2400010616 Rev E 07 2015...
