Maxi-Therm Indirect Fired Water Heater Installation Manual

32
SECTION IX
TROUBLE SHOOTING GUIDE
PROBLEM CAUSE SOLUTION
Refer to boiler installation
instructions
Check main service
switch
Boiler does not
operate
Check fused disconnect
Check power supply Circulator does
not operate
Replace as necessary
Improper aquastat
setting or
calibration
Turn tank aquastat to
appropriate setting
Check power supply Zone valve does
not open (if used)
Replace as necessary
Check fuse and replace
Check circuit breaker and
reset (if applicable)
Electrical problem
(relay, wiring,
etc.)
Check power supply
Scale build-up If boiler, circulator, and
tank are operating
satisfactorily, coil may
have scale coating. See
Section VIII:
Maintenance
No hot water at
faucet
Clogged cold
water filter or
boiler supply
strainer (if used)
Clean or replace filter or
strainer
Aquastat set too
high
Lower aquastat setting.
See Section VII
Improper system
plumbing
Compare plumbing to
Section V: Water
Connections
Water at faucet
too hot
Improper system
wiring
Compare wiring to
Section VI: Electrical
Connections