Installation Manual and Owner’s Guide WHO-321064-NG, WHO-321064-LP
ECOHOT
TM
16 of 27
TROUBLE SHOOTING
Introduction:
The
ECOHOT
TM
burner is activated by a water flow valve. Numerous water related problems can
cause this water valve to malfunction such as:
1.
Insufficient water flow volume to activate the burners at its minimum flow requirement.
2.
Dirt in the water flow valve causing it to malfunction.
3.
Sediment build-up in faucet, or shower head.
4.
Uneven pressure between cold and hot (with single valve faucets).
5.
Plumbing crossovers.
These water flow related problems can cause the heater to deliver less than its full output, or to fail
to ignite or to shut down completely. (Always unplug power supply before removing cover.)
No spark at the pilot:
Cross over in water lines.
To confirm there is no cross-over in the plumbing, shut off the cold
water supply to the
ECOHOT
TM
and open a hot water faucet. There should not be any water
flowing at any faucet. Water running is a sign of a plumbing cross-over. Consult your plumber.
Water flow is not sufficient to activate heater.
1.
Water flow rate at faucet is below minimum flow needed to activate this appliance do to
clogged screens/filters or restricted water pipes. Consult your plumber.
2.
Water inlet screen is clogged. Water flow is restricted, preventing needed flow to activate heater.
Clean water inlet screen (See Fig. 1).
3.
Water valve parts may be dirty or components damage, water valve and component parts must
be completely free of dirt. In hard water areas water valve parts may be corroded to a point
where they will need replacing. Check for any sign of moisture or corrosion is at the joints of
the water valves and/or components. Replace or service if needed immediately.
4.
Poor circuit connections at the Over Heat Sensor (ECO) or the flue gas safety device.
Ignition sparker will not operate if the electrical circuit is interrupted. Check that the
connections to the
ECOHOT
TM
and “Flue Gas Safety Device” are secure.
SPARK APPEARS AT PILOT WHEN HOT WATER TAP TURNED ON, BUT PILOT AND
BURNERS WILL NOT IGNITE.
Note:
Air in the gas line is normally a problem at time of initial installation, after the pipes
have been worked on, or after a gas supply line has been allowed to empty. Bleed the air
trapped in the gas line by turning the hot water faucet on and off until the air has been
cleared from the line.
No gas to the ECOHOT
TM
1.
Gas cock on gas line may not be open.
2.
Gas regulator may be shut or damage. Replace or unlock the regulator. Excessive pressure
will lock it up. Locking usually happens when using propane gas if the gas pressure
between the gas tank and the water heater’s gas regulator has not been reduced. To unlock
