Bradford White DW240L, Инструкция по установке и эксплуатации

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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
Temperature high
limit on thermostat
tripped Determine reason for trip.
Depress red “RESET”
button on thermostat
Improper thermostat
setting or calibration Adjust tank thermostat to
appropriate setting.
See Section VII
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
Water at faucet
too hot Thermostat set too
high Adjust thermostat setting.
See Section VII
Improper system
plumbing Compare plumbing to
Section V
Improper system
wiring Compare wiring to Section
VI