LAARS Stor - Installation, Operation and Maintenance Instructions - Manual (Page 32)

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.