Hydrolevel 3250 User Manual download pdf (Page 11)

YES

Recheck

Wiring.

Replace

Control.

When there is no call to fire the burner, the voltage

should be 0 volts between B1 and B2.

 Make sure the burner is wired to B1.

YES

Is the

Low Limit Dial

Set to OFF?

Is there

120 VAC between

B1 and B2?

Is the

hermostat

(T-T) Calling

or Heat?

YES

Is the

External Zone

(ZC-ZR) Calling

for Heat?

s the

Red LED

(LOW WATER)

On?

The Control is

ensing

Low Water.

WARNING!

URN OFF POWER TO BURNER IMMEDIATELY!

AUTION – ALWAYS ALLOW A BOILER TO FULLY COOL

BEFORE ADDING WATER.

 Recheck wiring. Make sure that burner is wired to

B1. Burner should never fire when red or yellow

LED is lit.

Is either

ellow LED

On?

he Control has

Reached Target

r High Limit

Temperature.

The Control is

Operating

Normally.

The Control is

Operating

Normally.

The burner will continue to fire when there is a call

rom the thermostat or external zone.

 Check temperature display. When the Low Limit is

set, the HydroStat will fire the burner until the

temperature reaches the Low Limit Setting.

If there is no call for heat (from T-T, ZC-ZR or Low

Limit), there should be 0 VAC between B1-B2.

 If there is voltage between B1-B2, the control

should be replaced.

Troubleshooting Flow Chart 2 – Burner Will Not Shut Down

YES

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Hydrolevel 3250 User Manual Page 11

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