We just had a condensation tube placed in the outlet PVC but the leak continues at the base of the fan on top of the hot water heater
Hi,
Here are some general things to check:
1. Is the vent piping correctly sized?
2. Is the vent piping run too long? There are length limits depending on the heater for both vertical and horizontal runs.
3. Is there sufficient combustion air available? A very tight dwelling can cause a lack of adequate air supply for the combustion process.
4. Does the vent pipe run through a cold or otherwise unconditioned space on its way to the outside? The vent may need to be insulated (high temperature insulation only)
5. Is the vent fan working properly and stay on long enough?
6. Is the gas supply pressure ok and is the burner working properly?
home is 10 yrs old, hot water heater the same, the conditions are the same as always so your #5 point is probably the cause. The repairman says the fans are $200 so not sure it would be worth replacing it on a 10 yr old unit. Thank you for your insights.
Thanks, checking the outside vent was the first thing we did. It has a screen over it, we removed it and used the shop vac, no obstruction. Thanks again.
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One more thing - make sure the vent is not obstructed. In some areas, birds will sometimes build nests in the line unless it's equipped with a screen or diverter on the end.
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