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TANKLESS
WATER HEATERS
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Tankless Water Heater Product Guide
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Tankless Water Heater Applications
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Tankless Water Heater Electrical Guide
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Tankless Water Heater Installation
Plumbing / Electrical
Tankless Water Heater Cost Comparisons
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Tankless Water Heaters Service Guide
Remove / Repair
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OUTLET TUBE SEAL REPLACEMENT
The
outlet tube seal is located between the outlet tube connection and the
left side of the heating chamber. It will be necessary to remove the heater
from the wall.
Required Tools: Large & small Phillips screw
drivers, battery powered volt meter, rag, bucket, two pipe wrenches, needle
nose pliers and Teflon tape pipe sealer.
WARNING: To avoid electrical shock,
make sure that the all of the power is off to the heater before attempting
to remove the old outlet tube seal and while installing the new seal.
- Turn off all the power to the heater. Confirm
the power is off with a voltmeter, even if the status light (or
LED) on the control board is off. There may be multiple breakers powering
your model heater.
- Open a hot water faucet nearby. While the
water is running, turn off the water supply to the heater. This will
help siphon some of the water out of the heater.
- Using a large Phillips screw driver,
remove the six screws from the right bottom clean out plate on the under
side of the heating chamber to drain the remaining water from the heater
into a bucket. Replace the plate after draining.
- Using two pipe wrenches, disconnect
the inlet and outlet water lines threaded onto the top of the inlet
and outlet fittings. Use the rag to prevent any water dripping
or spraying, which should be very little if any.
- Back out the AC power wires through the
right side of the metal base pan.
- Remove the entire heater assembly from the
wall by removing the 4 mounting screws.
- Remove the four Phillips head screws in
the back of the assembly that hold the heating chamber to the metal
base pan.
- Remove the four screws that hold the outlet
tube to the left side of the chamber assembly, exposing the seal for
replacement if necessary.
- Re-assemble in the reverse order.
- Wrap the Teflon tape pipe sealer
around the threads of the inlet and outlet fittings before reconnecting
the inlet and outlet water lines. Do not use
Plumber’s Putty or Pipe Dope on the threads of the inlet and outlet
fitting connections. If using CPVC or PVC primer and glue, avoid contact
of these substances with the inlet and outlet fittings on the heater.
These substances are highly corrosive and can damage the inlet and outlet
fittings. Leaks may occur as a result and cause severe damage to the
heater.
- Turn on the water and check for leaks.
- Turn on the power to the heater. Make sure
that all of the circuits are on to power the heater.
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