Mazda 3 Forums UK

Technical Section => Ventilation => Topic started by: Richie20.5 on November 20, 2019, 08:13:51 PM

Title: 2014, 2.0, Heater not working
Post by: Richie20.5 on November 20, 2019, 08:13:51 PM
Hi, im new to the forum so please excuse me if this is a regular question.
My heater is blowing out cold air but minimal warm air comes out if fan is off.
Coolant is fine, no leaks but have noticed one of the matrix pipes is cold half way along (nearest end to firewall).
Any advice or suggestions would be greatly appreciated.
Richie.
Title: Re: 2014, 2.0, Heater not working
Post by: Willpower on December 04, 2019, 02:52:01 PM
As you have had no other answers to this , I would just say that the ventilation system is not a heater per se.  It is Air Conditioning . I would suggest that the temperature that you have set is being maintained, but if you require a boost in cabin temp then the blower/fan is a quick fix.  A more permanent higher temperature can be obtained by changing your set temperature and distribution configuration.
Title: Re: 2014, 2.0, Heater not working
Post by: speedy mazda on December 04, 2019, 05:20:57 PM
If you google the fault it’s common and usually it’s the end of the cable come unhooked due to vibration.