LAARS Stor - Installation, Operation and Maintenance Instructions - Manual (Page 33)

33
Trouble Shooting Guide continued-
PROBLEM CAUSE SOLUTION
Aquastat setting
too low. Adjust aquastat 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.
High aquastat
differential. Adjust aquastat
differential. See Section
VII. Differential dial is
under aquastat cover.
Replace aquastat.
Insufficient hot
water.
Faulty tank
aquastat. Replace aquastat.
Excessive
demand. Reduce demand or
consider larger tank.
Low aquastat
differential. Adjust aquastat
differential. See Section
VII. Differential dial is
under aquastat cover.
Boiler high limit
set too low. Increase boiler high limit
setting.
Boiler cycles
more than 5
times per day
in summer.
Faulty aquastat. Replace aquastat.