How To Clean Air Vent In Takagi Tankless Water Heater

Takagi tankless heaters take proven themselves to be highly reliable over the years, requiring little maintenance or repair. However, a few small-scale service requirements should be performed at least one time a year to insure trouble-free functioning. These are outlined in your Service and Installation Manual under "Maintenance and Service." Or telephone call us at 1-888-882-5244.

• Download Troubleshooting Guides here.

External Troubleshooting

A very high percentage of service problems requiring troubleshooting tin can usually exist traced to causes external to the unit of measurement. These problems in guild of occurrence are:

	Improper Venting: The most common error is the use of standard B-vent, which can speedily destroy the heat exchanger due to acidic condensation. Improper venting may cause exhaust gas leaks and would be considered unsafe. All Takagi non-condensing tankless h2o heaters must use sealed stainless steel vent pipe canonical for use in Category 3 appliances. All Takagi condensing models may utilise Schedule twoscore PVC, ABS pipes, or Category 3 stainless steel.
	Gas Supply Line Problems: Undersized Line: There is a great tendency to just "claw upwards to the existing gas line," which is usually only ½ inch bore. Strict attention must be paid to the gas-line requirements department in the installation transmission. Make sure that you size for the maximum BTU per 60 minutes rating and not the minimum.
	Make sure that you lot order the correct heater for the type of gas you will be using, Natural Gas or Liquid Propane.
	Water Flow/Temperature Fluctuation Problems: If in that location is a low menses from the heater, the first thing to check would be the input filter. Turn off the common cold supply, relieve the hot pressure and remove the filter to check for debris. Clean or replace the filter and and so check the flow again. If there is inadequate hot water or variations in temperature, cheque for plumbing "cross menses," which means there is a connection somewhere betwixt hot and common cold. This may be as inconspicuous as a worn seal in a unmarried-handle faucet. To check for this, shut off the cold supply to the heater and open up either the pressure relief valve or whatever hot-h2o faucet. If in that location is a steady period of water from the hot output later on the pipe has drained, at that place is a cantankerous catamenia somewhere in the plumbing that must be fixed.
	Other causes of temperature fluctuations tin can exist the gas line may be too minor, or the heater temperature may be set likewise high in an effort to "get more hot water." This can cause a shower to exist turned too far to the common cold side, which doesn't let enough hot-h2o catamenia to keep the heater on steadily. In about circumstances, the heater should be set to its default of 122°F.
	Hard Water Problems: In areas where the water is very hard with high levels of calcium and magnesium (about seven+ grains per gallon on residential application), Takagi recommends that the water be treated with a water softener or some other de-scaling device. Do non utilize a reverse osmosis procedure! It volition destroy the heat exchanger. Removing minerals or keeping them in suspension will greatly lengthen the life of the heater and reduce service problems.
	Environmental Issues: The heaters should be installed in relatively clean areas with access to sufficient combustion air that is free from dust, lint, grease, or chemicals. If any of these conditions are present, a directly vent model or kit should exist installed. For this reason, restaurant, beauty salon and industrial applications should always get a direct vent unit, which draws its combustion air from the outside.

Internal Troubleshooting and Repair

Internal troubleshooting is recommended to be performed by professional person service providers. Checking internal component should be done only after all of the in a higher place external criteria has been thoroughly checked and repaired. Please refer to the Installation Transmission or call us at 888-882-5244.

Source: https://www.takagi.com/professionals/troubleshooting-and-repair

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