Potential Cause (Technical Use Only: Potential remedy):
Low room air flow due to user selection of low fan speed, or automatic selection of low fan speed when heating a small zone. This is not a fault – it is normal operation.
Maximum room fan speed set too low during set‐up. Check maximum room fan speed – increase if required.
Thermistor too close to heater outlet. Move to 3m from heater along outlet duct if required.
Low room air flow due to poor ducting design or installation. Check: -Sufficient outlets for heater model. -Correct duct diameter. -Long duct runs not small diameter. -Correct return air grille size. -Return air filter clean. -No tight‐radius duct bends. -Ducting not squashed.
For Braemar Ecostar TQ, TQM, TQS, TQMD, BMQ Gas Ducted Heaters and Braemar Supernova TQS Gas Ducted Heaters.