Mountainnet Fastar Water Heater Manual
Millaray Ball
It is annoying if your (new) device does not work after installation. We will do our best to provide you with a working device. That is why this page contains the most frequently asked questions. There are 2 important points that we want to mention:
The device cannot start for various reasons due to technical defects, incorrect installation or other external reasons. In many cases, checking and remedying the points below can make your water heater work smoothly again.
For other models, the following may apply. If you look into the geyser from below (without the cover it is easier to see), you will see a small black block with a metal tab between the 2 rotary knobs. When water starts to flow, this metal tab should move to the right. This tab releases a small orange button. If the tab does open but the orange button does not appear, the micro switch is defective (for the Cointra models, the left rotary knob must also be open, because it is connected to a micro switch, so the same control applies as above).
We hope that your water heater will work through these points. Should this not be the case, he should at least do something e.g. "I hear the water heater tap, but ...". In this case, look at our other FAQs that best reflect your situation.
If you open the water tap and hear the water heater ticking but no hot water comes out, it is likely that the battery is no longer powerful enough to open the gas valve in the water heater. This is easily solved by replacing the (almost) empty battery with completely new batteries. Please note, batteries that have been in storage for some time may also not work properly.
Another possibility is if you have just installed a TTulpe B6,11 or 14 that the water heater will have some trouble igniting for the first time because of air in the system. Make sure everything is properly connected and all connectors are tight. Start the water heater several times and make sure that the left knob is turned fully to the left. If all goes well, a flame will light up on the left. You may need to repeat this several times.
If the pilot light burns but the main burner still does not want to ignite, it can help by placing your finger (or something else) on the hole on the pilot burner on the side (the middle of the 3). Note that this can be hot if the pilot flame has been burning for a while.
A third possibility, especially for water heaters that are put into use again after a longer period of time, is that after hot water demand, the water heater continues to tap slowly (to keep the pilot light burning). You can also solve this by screwing in the screw of the hammer (indicated with a blue arrow in photo 2).
A fourth possibility is that the thermocouple is not (any longer) properly inserted in the pilot light. The water heater then does not detect that the pilot light is on and keeps ticking and the main burner does not turn on. This can be remedied by maneuvering the thermocouple into the pilot light with a long screwdriver, for example. This must be done with care and by a recognized installer. Please note that this is a different situation than that the water heater keeps ticking after hot water demand, see point 3.
With the TTulpe B6, 11 and 14 you can check this by removing the hood and looking for the safety sensor (TTB) at the top left. This has a reset button, if you press it, the water heater should work again (see photo 3).
NB! If you are not going to use the water heater for a longer period of time, for example during the winter, make sure that the battery is removed. Otherwise, the battery may oxidize the contact point in the battery compartment. There will then no longer be any current flowing from the battery to the ignition, even if the battery has been replaced. You can solve this by carefully disconnecting the wires with needle nose pliers because they are secured and unscrewing the battery compartment. On one side there is a lip that has discolored brown. You can remove the oxidation with a sandpaper. If this doesn't work, you can go to =product&l=4&o=314&p=207 and order a new one.
A fourth possibility is that the thermocouple is not (or no longer) properly inserted into the pilot light. The water heater then does not detect that the pilot light is on and keeps ticking and the main burner does not turn on. This can be remedied by maneuvering the thermocouple into the pilot light with a long screwdriver, for example. This must be done with care and by a recognized installer. Please note this is a different situation than the water heater continuing to tick after hot water demand.
The flue pipe must not have a smaller diameter than the connection, after which the pipe must run at least half a meter vertically. Regarding the dimensions and laying of the chimneys and their connecting flues, the local regulations must be followed carefully.
The water heater is equipped with a safety device (flue gas thermostat or TTB) that interrupts operation in the event of insufficient chimney draft or blockage. This device should never be manipulated or deactivated for your own safety!
Flexible pipes, kinks, too narrow channels or constrictions and very long channels reduce the draft and can cause the water heater not to work properly. For the correct dimensions of the flue pipes, see the manual or our website.
If you close the water tap and your water heater remains lit for a while, a dangerous situation can arise. Stop using your water heater until the problem is corrected. The mechanism that closes the gas valve when the water flow stops is faulty. The water can start to boil and builds up pressure in your water heater, which can cause leakage or hot water to be discharged through the overpressure system. There are several reasons that this can happen, for example due to (long-term) excessive water pressure and wear. The gas water valve must be replaced, we recommend that this be done by a recognized installer or by a technician in our workshop, because the gas connections are broken. You can order the part on our website (with parts), before ordering, check your water heater type so that you receive the correct gas-water combination valve.
Although it is sometimes necessary for the device to be checked or repaired by our technical department, in many cases the problem can be solved remotely by means of the photos and description so that you can quickly enjoy hot water. This is how you prevent that; transport costs at your own expense, research costs may be charged, but more importantly, that you are not without hot water for longer than necessary. If, in our opinion, a return is necessary, we will send you a return label so that you can send the device free of charge.
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