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John Wood Water Heater Troubleshooting
If you're looking for help fixing your John Wood Water Heater, look no further! Our comprehensive John Wood Water Heater Troubleshooting guide will explain common issues, provide tips, and show you how to read your model's error codes.
Insufficient Hot Water
1. Thermostat set too low. Turn temperature knob to higher setting.
2. Leaking faucets/Wasted hot water. Repair faucets.
3. Wrong piping connections. Correct piping: dip tube must be in cold inlet.
4. Water heater too small. Install adequate heater.
5. Sediment or lime in tank. Drain/flush-provide water treatment if needed.
6. Long runs of exposed piping. Insulate piping.
7. Hot-water piping in outside wall. Insulate piping.
Water Is Too Hot
1. Thermostat setting is too high. Turn temperature knob to lower setting
2. Heater stacking (Failure to install the proper vent screens). Ensure correct size of exhaust and air intake pipes were used per the instruction manual for vent length. Ensure proper vent screens were used.
Slow Hot Water Recovery
1. Thermostat set too low. Turn temperature knob to higher setting
2. Wrong piping connection. Correct piping-dip tube must be in cold inlet
3. Wasted hot water.
4. Heater too small. Install adequate heater
Drip From Relief Valve
1. Heater stacking (Failure to install the proper vent screens). Ensure the correct size of exhaust and air intake pipes were used per the instruction manual for vent length. Ensure the proper vent screens were used.
2. Closed water system.
3. Pressure build-up. Use a pressure-reducing valve and relief valve.
4. Improperly seated valve. Check Relief valve for proper operation (Do Not plug T&P valve).
Smelly Water
1. Sulfides in water supply.
2. Bacteria in water supply.
3. Incompatible anode. Replace with anode appropriate for water conditions.
Condensation
1. Filling the new water heater for the first time. Normal operation: the condensation should disappear after heater warms up.
2. Water dripping from blower assembly. Install condensate hose to drain port on the rubber coupling.
Exhaust Pipe Too Hot
1. Failure to use correct size of exhaust and air intake pipes. Ensure the correct size of exhaust and air intake pipes were used per the instruction manual for vent length. Ensure maximum number of elbows or equivalent feet of both pipes was not exceeded.
2. Failure to install the vent screens. Ensure that the proper vent screens were used.
3. Blower high limit switch fails to open - switch defective. Replace blower high limit switch.
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Great product bought this for my rental property and it’s very efficient and tenant is very happy with the product Would recommend it
just installed a couple of weeks ago, everything seems to be working great. I started on the high setting but it was to hot so now it's set on low which it great, way more efficient that my 20 yr old one. When you light the pilot the first time you need to look upwards through the glass window to see that it's lit.
Direct replacement for my original…which lasted 29 years. The installation instructions leave a bit to be desired...
Works as it should no issues ar all. I made the right choice
John Wood manufacturer is a Canadian company that is a subsidiary of GSW, acquired by AO Smith in 2006. It offers a wide variety of water heaters for any household, budget, installation requirements and house type, and is sold mainly in Canada. If looking for an affordable unit which comes with average energy efficiency, you can get one for a few hundred dollars. If you want the top of the line model, condensing tankless is what you should go for, or if you prefer traditional, tank-type Polaris or Envirosense is the right pick, but be ready to pay for the quality.