6.Parts in water flow valve (#38411) are cor- roded
The gas valve will not open fully if water valve parts are corroded. Replace both parts in wa- ter valve (#38475, 33071).
HOT WATER TEMPERATURE FLUCTUATES
1. Temperature setting is too high
Setting the temperature too high will make it necessary to add a great deal of cold water to make the temperature safe and comfortable for contact with the skin. Adding too much cold to the hot water flow at the tap can create an im- balance and reduce the flow of water through the AquaStar causing the flow through the AquaStar to fall below the minimal 1.1 gallon/ minute. We recommend setting the tempera- ture selector dial on #4 or #5. See section on Setting Water Temperature, Page 12.
2. Unbalanced pressure in water lines
The added flow restriction caused by an AquaStar inthe hot water system can result in uneven pres- sures between the cold and the hot. In such cases
when mixing cold water at the tap, the lower water pressure on the hot side may be momen- tarily overpowered by a much higher cold wa- ter pressure, which may cause the AquaStar burners to shut down. Make sure faucet aera- tors or shower heads are free of minerals. Check that the flow restrictor and filter of the AquaStar are clean. Avoid running the AquaStar at the highest temperature setting.
3.Cold water is mixing with the hot water between the AquaStar and the outlet Check for automatic mixing valve or plumbing crossover (see #6, MAIN BURNERS WILL NOT IGNITE) Where automatic
4.Inlet water pressure is erratic due to inad- equate supply water pressure or saturated pressure tank on well system
Check the inlet water pressure and correct if necessary.
HOT WATER TEMPERATURE
°F
165
155
145
135
125
115
105
95
85
Fig. 6 Temperature/Flow Chart AquaStar 170
Temperature chart of hot water at different flow rates with selector on position 8 ______
and position 2 _ _ _ _ _ _ _ _
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
FLOWS IN GALLONS PER MINUTE
18
