20 Most Recent Navien CH-240-ASME-LP, Combi Condensing Commercial LP Water Heater/Boiler 91 Questions & Answers

Hard water contains a lot of minerals and depending on how hard the water is also depends on how often you must replace the filters. A much better alternative is to have a water softener installed before your hot water heater and any other sorce of domestic water supplying your home. I have one and it works great. Just be advised that you will need to replace the salt crystals every couple of months depending on the time intervals you set the timer to. If you find that the water still remains soft after two months and your filters are not to badly clogged then you may try adding salt every three or four months and see if that solves your problem. You also have to remember that your also using the water for drinking cooking and bathing so softening your water supply is very important especially if you or anyone in your household ever had any kidney stones or kidney problems.

Good luck,


Navien... | Answered on May 13, 2014

It is a gas appliance, it has to be serviced by a registered gas technician. They are too dangerous to try and fix yourself.

Water Heaters | Answered 21 hours ago

here mate try this it worked for me.

Press left key

Scroll till page 15

Code will say 000 - should be 1000

Press right key once change first digit to 1

Press right key again

Will be on C1 in top right hand corner

Scroll through C pages till A1

Two A1 pages looking for one that says de..utch

Click right key once and change to d.. English

Water Heaters | Answered on Jan 04, 2021

The red LED may be indicating that the temperature control has failed.

Water Heaters | Answered on Jan 02, 2021

Contact Titan to request the information.

Water Heaters | Answered on Dec 16, 2020

Jennifer, the instructions posted by Rheems on the heater are wrong. You must first rotate the dial clockwise, use force (in our our case) to get the pilot to its position. The folks at Rheems are nuts not to check their instructions before printing them and plastering them on their hot water tanks. Disgraceful, period.

Water Heaters | Answered on Nov 28, 2020

I have taken pictures and produced a wiring diagram for this model

Water Heaters | Answered on Nov 09, 2020

when cycling to start check ignitor see if it glows if no check voltage to it if yes replace ignitor

Water Heaters | Answered on Nov 01, 2020

look for display or control board if no buttons then cant adjust

Water Heaters | Answered on Oct 22, 2020

Automatic battery chargers have complex circuitry that is difficult to test especially when designed and built in a compact package and repairs are best entrusted to someone geared to such work which is outside the scope of general electronics.

On the plus side, as long as the intelligent circuitry is protected against mains borne surges and spikes the automatic charger is somewhat self-protecting against over stress and will tend not to even attempt to charge a defective battery, a sulphated or overly discharged battery.

I suggest you first check the battery or batteries to ensure they are healthy and have some charge so the charger can "see" them before condemning the charger and also check the connections to the battery that must be virtually perfect...

Water Heaters | Answered on Oct 05, 2020

Depends on the problem you have .if you are unable to fix it the option of calling a plumber is there .

Water Heaters | Answered on Sep 07, 2020

When the noise occurs when there is no hot water being used, it's likely there is a vacuum that's siphoning water away from the unit and causing loud noise and vibration. ... Another common problem that can create noise in tankless water heaters is a dirty flow sensor which controls how much gas is sent to the unit.

Water Heaters | Answered on Jun 24, 2020

  1. If the tester indicates there is power to the terminals and the water in the geyser is cold, then the element is faulty. ( ...
  2. If the tester indicates there is no power to the terminals and the water is cold, then the thermostat is faulty.

Water Heaters | Answered on May 06, 2020

Maybe. Knowing what it is that is generating error code E34 would be good start. Need manufacturer and model number.

Water Heaters | Answered on Mar 02, 2020

depends on the RV & the heater. I have seen some heaters that work on both options.

Water Heaters | Answered on Jan 11, 2020


Water Heaters | Answered on Jan 10, 2020

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