PILOT LIGHTS BUT FLAME GOES OUT WHEN BUTTON IS RELEASED
1.Pilot push button was not pushed in far enough or was not held in long enough
Slide the gas valve button ( 
) to pilot position ( 
) and depress this button. Hold it pushed in for at least 15 seconds to give time for the pilot flame to properly heat the tip of the thermocouple.
2.Pilot flame improperly aimed or is too weak so it is not properly heating the tip of the thermocouple.
The Pilot flame should be a sharp blue flame and aimed at the tip of the thermocouple so that it envelops 10 mm (3/8 “) of the thermocouple tip. Pilot flame has to be properly aimed at the thermocouple. See Fig 7.
3.Poor thermocouple connection at the electromagnet Note: Electromagnet is part #8707201012 located on the right side of the gas valve behind the piezo pushbutton assembly. Check the tightness of the thermocouple connection nut at the electromagnet: The
4.Poor circuit connections at the ECO. (Energy Cut- Off overheat protection)
Oxidation or looseness of the ECO terminal connections can result in millivolt current loss through the thermocouple safety circuit. Clean terminals with very fine sand paper or an eraser and reconnect ECO leads.
5. Faulty ECO (part #8707206040)
If cleaning the terminals attached to the ECO did not fix the problem, connect a jumper wire between the two wires and try to relight the pilot. If the pilot flame now remains on, replace the ECO. If the flame still goes out when the button is released, the ECO is not defective. Go to next step.
6.Faulty thermocouple (part #8747202083) or electromagnet ) Unless these 2 parts are at least 8 to 10 years old, it is very unlikely that they are faulty. Before testing, reconfirm that #2 is absolutely correct,
and that all connections are clean and tight . To test the thermocouple, disconnect the thermocouple lead to the ECO. Insert a
BURNERS DO NOT IGNITE WHEN HOT WATER IS TURNED ON
1. Pilot is not on.
Light the pilot. See lighting instructions.
2.Pilot lighting push button not turned to proper position
Be sure that once the pilot flame is on, that the gas valve button ( 
) is slid all the way to the right to the ON position
( 
).
3.Cold incoming water connection made to wrong side of heater
Make sure cold water inlet connection is on the right side of heater when you are facing heater.
4.Water flow rate at hot water tap is too low.
With the control knob set fully clockwise the Aquastar model 38B requires ½ gallon per minute flow to activate the burners. This is a flow which would fill a quart jar in
30seconds.
5.Cold water inlet filter on heater is dirty.
Remove the filter and clean. This screen filter is located at the inlet side of the brass water valve (fig. 10, #25). Check and clean faucet aerators too.
6. Crossover in household plumbing
The AquaStar burner activates when there is sufficient water pressure drop in the AquaStar water valve assembly — ie. when a hot water faucet is opened. If there is a crossover in the plumbing, the necessary pressure drop in the AquaStar will be insufficient, or totally eliminated. A plumbing crossover can be caused by a bad washer at a single lever faucet or incorrect plumbing or a mixing valve in the line, etc. which permits hot and cold water to mix in the plumbing. The crossover will create a back pressure in the system preventing the pressure drop in the Aquastar (i.e. cold water is entering the water heater from both sides and the burners will not come on). To confirm there is no crossover in the plumbing, shut off the cold water supply to the AquaStar. Open your hot water taps. There should not be any water flowing. If there is water flowing, there is a crossover in the plumbing. This is a plumbing problem, not an Aquastar problem. Please contact your plumber.
7.Water valve parts may be dirty or components damaged.
Water valve and component parts must be totally free of dirt. First check that the venturi is free of dirt particles. In hard water areas, mineral deposits can eventually (3 to 5 years in hard water areas) corrode the water valve parts to a point where they will need replacing. Any sign of moisture or corrosion at the joint of the water valve and the gas valve is a sign that the water valve assembly components need to be replaced immediately. (Contact service person to clean water valve or replace if corrosion is present).
14 | 6 720 606 446 |
