Install Instructions

34
Trouble Shooting Guide continued-
PROBLEM CAUSE SOLUTION
Thermostat setting
too low
Adjust thermostat to
higher setting. See
Section VII
Undersized boiler
with no priority to
domestic hot water
Rewire for priority
Peak use of hot
water is greater
than tank storage
capacity
Determine peak usage
and compare to tank
capacity
Insufficient hot
water
Faulty tank
thermostat
Replace thermostat
Excessive demand Reduce demand or
consider larger tank
Faulty thermostat Replace thermostat
Boiler cycles
more than 5
times per day
in summer
Boiler high limit
set too low
Increase boiler high limit
setting