Installation / Operation Instruction Manual

29
SECTION IX
TROUBLESHOOTING GUIDE
PROBLEM
CAUSE
SOLUTION
No hot water
at faucet
Boiler does not
operate
Refer to boiler
installation instructions.
Check main service
switch.
Check fused
disconnect.
Circulator does
not operate
Check power supply.
Replace as necessary.
Improper
aquastat setting
or calibration
Turn tank aquastat to
appropriate setting.
Zone valve does
not open (if
used)
Check power supply.
Replace as necessary.
Electrical
problem (relay,
wiring, etc.)
Check fuse and
replace.
Check circuit breaker
and reset (if
applicable).
Check power supply.
Scale build-up
If boiler, circulator, and
tank are operating
satisfactorily, coil may
have scale coating. See
Section VIII:
Maintenance.
Clogged cold
water filter or
boiler supply
strainer (if used)
Clean or replace filter
or strainer.