--- title: The frost protector valve in a Fusion description: This article and video demonstrate what a frost protector valve does and how to reset it in your Fusion motorhome. --- [Skip to content](https://knowledge.traillite.co.nz/en/knowledge/lesson-fifteen-frost-protector-valve#main-content) English Show submenu for translations ![TrailLite Group\_Primary\_Gold\_RGB-1.png\]](https://knowledge.traillite.co.nz/hs-fs/hubfs/TrailLite%20Group_Primary_Gold_RGB-1.png?height=40&name=TrailLite%20Group_Primary_Gold_RGB-1.png) - [The TrailLite Blog](https://blog.traillite.co.nz/) Open main navigation Close main navigation - [The TrailLite Blog](https://blog.traillite.co.nz/) - English Show submenu for translations - [Go to www.traillite.co.nz](https://www.traillite.co.nz/) [Go to www.traillite.co.nz](https://www.traillite.co.nz/) Hello. What can we help you with today? - There are no suggestions because the search field is empty. 1. [Help Centre](https://knowledge.traillite.co.nz/en/knowledge?hsLang=en) 2. [Fusion Information and Guides](https://knowledge.traillite.co.nz/en/knowledge/fusion-information-and-guides?hsLang=en) # The frost protector valve in a Fusion ## This article and video demonstrate what a frost protector valve does and how to reset it in your Fusion motorhome. Your Fusion motorhome has a frost protector valve that will dump water from the pipes at below three degrees celcius temperature. This is located in a cupboard in your boot **(refer to video below).**   When your Truma heating system detects this temperature, which could result from being parked up in extremely cold conditions such as snow or a heavy frost, the frost protector valve will open and dump the water from your pipes onto the ground. This is to protect against water freezing in your pipes and causing damage. You will know this has happened if you see water on the ground under your motorhome and no water is coming out of your taps. This can also happen if the motorhome has not been used in a while. This frost protector valve needs to be manually reset so you can use your taps again.   **Please Note:** If you are parked up during a heavy frost, cold weather or in the snow and you have your hot water and heater on, the frost protector valve will not open. However, at night, if you turn your heater and hot water off, turn off your water pump. The reason for this is that the valve will not only dump the water in pipes but will empty your tank as well if the water pump is left on. - [General Help and Information](https://knowledge.traillite.co.nz/en/knowledge/general-help-and-information?hsLang=en) - [TrailLite Information and Guides](https://knowledge.traillite.co.nz/en/knowledge/traillite-information-and-guides?hsLang=en) - [Benimar Information and Guides](https://knowledge.traillite.co.nz/en/knowledge/benimar-information-and-guides?hsLang=en) - [Fusion Information and Guides](https://knowledge.traillite.co.nz/en/knowledge/fusion-information-and-guides?hsLang=en) - [Mobilvetta Information and Guides](https://knowledge.traillite.co.nz/en/knowledge/mobilvetta-information-and-guides?hsLang=en#main-content) - [KP model](https://knowledge.traillite.co.nz/en/knowledge/mobilvetta-information-and-guides?hsLang=en#kp-model) - [Both models](https://knowledge.traillite.co.nz/en/knowledge/mobilvetta-information-and-guides?hsLang=en#both-models) [![Chill listening crop-3](https://knowledge.traillite.co.nz/hs-fs/hubfs/TrailLite%20Group_Primary_Gold_RGB-2.png?width=200&height=49&name=TrailLite%20Group_Primary_Gold_RGB-2.png "Chill listening crop-3")](http://traillite.co.nz) Contact our friendly service teams for more information or assistance. Pukekohe: 09 237 0187 | 15 Alpito Place, Pukekohe. Christchurch: 03 222 2067 | 10 Innovation Road, Islington. **Email** - Service [Service@TrailLite.co.nz](mailto:Service@trailLite.co.nz) or Parts [parts@TrailLite.co.nz](mailto:parts@TrailLite.co.n)   Copyright © 2026, TrailLite Group