HARDY MANUFACTURING CO., INC (MODEL KB165) PAGE 30
9-1
TROUBLE SHOOTING GUIDE
(CONTINUED)
Problem
Causes
Solutions
Unit smokes
(continued)
Bypass damper leaking
Change out the bypass damper gasket
Bypass damper staying opened
Clean creosote away from the damper lid so it
will shut properly
Replace the closeure spring if needed
Unit will not come on Power lose
Check with volt meter for power between
terminals 1 and 4 on the terminal strip for 120
vac
Reset incoming power
Combustion blower switch
Check with volt meter for power between
terminals 1 and 5 on the terminal strip for 120
vac
No power flip switch and test again. Still no
power replace switch
Float switch
Check to see if low water light is illuminated on
the temperature logic control
Check to see if heater is full of water (add water
if needed)
Change the float if the heater is full of water and
the float will not open
Lockout relay
Check with volt meter for power between
terminals 1 and 7 on the terminal strip for 120
vac
If power is there and relay is not energized
replace relay
Time Delay relay
Check with volt meter for power between
terminals 1 and 8 on the terminal strip for 120
vac
If power is there and relay is not energized
replace relay
Time Delay Control
Check with volt meter for power between
terminal 1 on the terminal strip and each of the
connections on the time delay control for 120
vac
If power is on one terminal but not on the other
replace time delay control.
Summary of Contents for KB165
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