E2 in this models error codes mean that its not heating "more specific " sensor does not sense a 10 degree rise in temp in more than five minutes , this can be caused by a blocked off vent pipe , this is something that most homeowners can do themselves without too much trouble , remove large pipe off of back of unit and use your vac hose to insert it as far up the pipe as you can reach then mark how far hose went in and remove that next section of pipe , continue this way all the way to end sometimes can be quite long or if your not willing or able to remove the back of machine yourself , then yes id say you going to need a service techs help to fix it
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E2 in this models error codes mean that its not heating "more specific " sensor does not sense a 10 degree rise in temp in more than five minutes , this can be caused by a blocked off vent pipe , this is something that most homeowners can do themselves without too much trouble , remove large pipe off of back of unit and use your vac hose to insert it as far up the pipe as you can reach then mark how far hose went in and remove that next section of pipe , continue this way all the way to end sometimes can be quite long or if your not willing or able to remove the back of machine yourself , then yes id say you going to need a service techs help to fix it